Two more “persons of interest” are being sought in the investigation of the death of a southwest Missouri teen. Dallas County detectives want to talk to 24-year-old Desiree Siddens and 39-year-old Larry Warner to see what they know about what happened to 15-year-old Kighla Parks.

Parks’ body was found floating in Truman Lake September 30. 47-year-old Anthony Balbirnie of Springfield has been charged with abandonment of a corpse. Investigators say they think Parks was killed near Buffalo, but the prosecutor says she doesn’t yet have enough for a murder charge.